Attachment for lathes.



Patented Oct. 7, |902. yFi. M. RUSSELL.

ATTACHMENT FOR LATHES.

(Application med ont. a, 1901.)

3 Sheets-Sheet l.

(No Model.)

WITNESSES:

ATTORNEYS.

No. 7I0,807. Patented Uct. 7, |302* R. M. RUSSELL ATTACHMENT FOR LATHES.

:Application fixed out. a, 1901.)

3 Sheets-Sheet 2 (No Model.)

3/ v INVE OR QM 272./ BY OQITORNEYS.

.No. 7l0,8'07. Patented Oct.A 7, |902.

R. M. RUSSELL.

ATTACHMENT FOB LATHES'.

(Application inea oct. s, '1901.

3 Sheets-Sheet 3Q (No Model.)

a4 TTORNE YS.

ma Nonms Farina co, PHoTaLrmo.. wAsHmGToN. D. c.

UNITED STATES PATENT OEEICE.

ROSS M. RUSSELL, OF BINGHAMTON, NEW YORK.

ATTACHMENT FOR LATH ES.

SPECIFICATION forming part of Letters Patent N0. 710,807, dated October7, 1902.

Application filed October 3, 1901. Serial No. 77,420. (No model.)

To all whom t may concern.:

Be it known that l, ROSS M. RUSSELL, of Binghamton, in the county ofBroome, in the State of New York, have invented new and usefulImprovements in Attachments for Lathes, of Which the following, taken inconnection With the accompanying drawings, is a full, clear, and exactdescription.

My invention relates to attachments for lathes, having more particularreference to a grinding attachment for metal-Working machinery.

The object of this invention is to provide a rotary grinding memberactuated by one of the rotary parts of a lathe or similar machine towhich my invention is attached.

A further object is to connect the grinding member in such manner as toenable the operator to control its movement.

Another object is to mount the grinding member upon a revoluble supporthaving an endwise movement, which permits the operator to move saidmember lengthwise of its axis, said grinding member being adapted forgrinding centering-points and for various internal or external grinding,either parallel with or at an angle to its axis.

A further object is to so arrange and com-` bine the various parts of myinvention as to adapt the same for grinding or polishing tools orimplements of various sizes and shapes.

To this end the invention consists in the combination, construction, andarrangement of the various parts of my improved grinding attachment, ashereinafter fully described, land set forth in the claims.

Referring to the drawings, Figure 1 is a top plan of my invention,showing a face-plate, cone, and centering-pin, the grinding attachmentbeing shown in position for sharpening the centering-pin. Figs. 2 and 3are sectional views taken, respectively, on lines 2 2 and 3 3 of Fig. 1.Fig. e is an end view of the attachment seen in Fig. 1, shown asdetached from the tool-post of the lathe. Fig. 5 is a sectional viewtaken on line 5 5 of Fig. 4, the section of the shaft-bearing, thefriction-Wheel, and its supporting-yoke being omitted and the adjacentsection of the shaft being broken away in proximity to the pulley. Fig.6 is a top plan of a slightly-modified form of my invention, thegrinding member and its support being adapted for sharpening rotarycutters or milling-tools. Fig. 7 is an end View of the device seen inFig. 6, a milling-tool being shown in position for grinding the teeth ofthe same. Fig. 8 is an elevation of a spindle for supporting thegrinding-tool for internal grinding and is adapted to be substituted forthe spindle of the grinding-Wheel seen in Figs. 1, 3, et, and 6.

Similar reference characters indicate corresponding parts in all theviews.

In Fig. 1 of the drawings I have shown a portion of a lathe having acone-pulley 1, face-plate 2, centering-pin 3, and a tool-supporting headL1, these parts being necessary to the clear understanding of theoperation of my invention, which consists, essentially, of a bracket 5,a flexible shaft 6, journaled in one end of the bracket, a rotaryspindle 7, journaled in the other end of the bracket and carrying arotary grinding-Wheel 8, and a yoke 9, mounted upon an upright standard10.

The cone-pulley 1 may be of any desired form, size, or construction,provided With any number of belt-surfaces of unequal diameters andmounted upon a suitable shaft 11, said shaft being journaled in abearing 12 and provided With the face-plate 2 and centeringpin 3, thecentering-pin and face-plate being removable in the usual manner notnecessary to herein illustrate or describe, as the pulley l, face-plate2, and centering-pin 3 may be of any well-known construction and mountedin the usual manner. The tool-post 4 may also be of any desired form,size, or construction adapted to receive and support the various toolsemployed in metal-Working. As is Well known, these tool-posts areprovided with a transverse slot for receiving the tool and a clampingbolt or screw 13 for securing the tool in position. The bracket 5, whichsupports the shaft and spindle 6 and 7, is detachably mounted in theslot of the tool-post and is. held in position by the clam ping-screw 13in the manner of supportingany ordinary tool. This bracket usuallyconsists of sections 14, 15, and 16, the section lebeing provided with alaterally -projecting arm 17, which is adapted to enter the slot in thetoolpost 4 and is secured therein in the usual manner by theclamping-screw 13, and the sections 15 and 16 are adjustably mounted IOOupon the section 14, the section 15 being adjustable horizontally and atany desired angle, and the section 16 is adjustable vertically andhorizontally and also at any desired angle. In the preferred form of myinvention the section 14 consists of a single metal bar the oppositeends of which are disposed at an angle to each other other than a rightangle, one end being provided with the arm 17,which enters thetool-post, and is also formed with sockets 1S and 19, the socket 1Sbeing adapted to receive a clamping-screw 2O and the socket 19 beingthreaded for receiving a suitable clamping-screw 21, both of whichclampingscrews are for special purposes hereinafter described. Theopposite end of the section 14 is provided with a series of apertures22, arranged to receive a suitable clam ping-screw 23, also for apurpose hereinafter mentioned. The section 15 of the bracket 5 isprovided at one end with an elongated bearing 24, its other end beingextended at substantially right angles with the bearing, and is providedwith a lengthwise slot 25 for receiving the clamping-screw 20. Arlhesection 15 is arranged to be clamped by the screw 2O against theadjacent face of the section 14, this section 15 being adjustable alongthe section 14 for moving the bearing 24 toward and away from the arm 17and is also capable of being rocked vertically upon the clamping-screw20, being held in either of its adjusted positions by the saidclamping-screw 2O and a suitable nut 26, engaging with the threaded endof thescrew and the opposite face of the section 14. The section 16 isheld in position by the clamping-screw 23 and a suitable nut 27 and isprovided with a vertical slot 28 and an elongated bearing 29 forreceiving the spindle 7, the slot 28 serving to permit the bearing 29 tobe adjusted vertically, and the clamping-screw 23 forms a pivot uponwhich the section 16 may be rocked and also serves to clamp the section16 in its adjusted position upon the section 14. The bearing 24 isarranged to receive and support one section of the exible shaft 6, andin order to reduce the friction of said section of the shaft 6 in thebearing 24 I provide suitable roller-bearings 30, interposed between theshaft-section and the inner face of the bearing 24, these rollers beingof substantially the same length as the bearing and, together with thebearing 24, are held from lateral or endwise movement by a collar 31 andthe hub of a pulley 32, presently described, the collar 31 being securedto the shaft by a set-screw 33 or equivalent fastening means.

As previously stated, the opposite ends of the section 14 are disposedat an angle to each other, the bearing 29 being arranged atsubstantially right angles with the adjacent end of the section 14 andthe bearing 24 being arranged at substantially right angles to theopposite end of the section 14, and it is thus evident that the axes ofthe shaft 6 and spindle 7 are arranged atan angle with each other,

the axis of the tool to be ground or sharpened such as the centering-pin3. The spindle 7 is movable lengthwise in the bearing 2f) for moving thegrinding-wheel along the tapering surface of the centering-pin or otherrevolving tapering tool, this lengthwise movement of the spindle beingcontrolled by the operator by means of a suitable sleeve, as 34, whichis loosely mounted on the end of the spindle 7, being held in positionby suitable shoulders 35 and 36, provided on the end of the spindle 7,one of the shoulders, as 36, being a screw detachably engaged with thespindle for permitting the removal of the sleeve when desired.

Any desired means may be employed for rotating the spindle 7from theshaft 6; but I preferably provide the shaft 6 with the pulley 32, whichis connected to a smaller pulley 37 upon the spindle 7 by means of abelt 3S, the intermediate portion of the said belt being passed oversuitable idlers 39 and 40, mounted one above the other upon an uprightstandard or support 4l, the lower end of said standard being removablysecured to the bracket or section 14 by any desired form of fasteningmeans, as the bolt 21. These pulleys 32 and 37 and the idlers 39 and 40are preferably grooved for receiving the belt 38 and permitting thespindle 7 or shaft 6 to be The 'ICO

moved to different positions relatively to each other without liabilityof displacing the belt from the pulleys or idlers. These idlers arepreferably supported in a plane above the axes of the spindle 7 and theshaft 6 for permitting free access to the work; but it is evident thatin some instances, particularly in parallel internalor externalgrinding, the axis of the spindle 7 may be arranged substantiallyparallel with the axis of the shaft 6, and in Figs. 6 and 7 I have showna bracket 5',composed of sections 14', 15', and 16', said bracket havingbearings 24 and 29', parallel with each other, the bearings 24 beingmounted upon the section 15' and the bearing 29 being mounted upon thesection 16'. Adjustably secured to the bracket 5 is an additionalsupport 41', which is held in position by a clamping screw and nut 27'and is provided with an adjustable tool-rest 50, this rest being held inposition by a suitable clamp 51.

The device seen in Figs. 6 and 7 is adapted for grinding or sharpeningrotary cutters, such as milling-tools, and owing to the vfact that theshaft 6 and spindle '7 are adjustable toward and away from each other itis evident that any size of grinding-wheel may be em- IIO ployed, or aparticular size of grinding-wheel may be employed for grinding orsharpening any size of milling-tool, the rest 50 being adjustablevertically for the purpose of engaging the tool of the cutter andholding the cutter from rotation during the process of grinding orsharpening the teeth. When this form of grinding attachment is employed,the shaft 6 is connected directly to the spindles 7 without theinterposition of the idlers, and when it is desired to substitute theexternal grinding-wheel for an internal grinder the spindle is removedfrom its bearing 29', and another spindle, as 52, of greater length isinserted into the bearing 29, said spindle being held in position by acollar 53.

The means for rotating the shaft 6 preferably consists of afriction-wheel 43, which is movably supported upon one section of theshaft 6 and is adapted to be forced into engagement with one of thesurfaces of the conepulley 1, this engagement of the frictionwheel 43With the cone-pulley being manually controlled by a handpiece 44 uponthe upper end of the floor-standard 10. As seen in the drawings,particularly in Fig. 2, the friction-wheel 43 is secured to a sleeve 45,which is feathered upon one section, as 46, of the iiexible shaft 6. Thesleeve 45 is provided with bearing-faces 47, journaled in suitablebearings 4S upon the yoke 9, which is adjustable vertically upon thestandard 10 and is held in its adjusted position by a suitableclamping-screw or equivalent device 49. The lower end of the standard 10is preferably pointed and is arranged to engage the door at any desiredposition, and it is evident from the foregoing description that theoperator may readily move the friction-wheel 43 into and out ofengagement With the periphery of one of the cone-sections 1, whereuponrevoluble motion is transmitted to the shaft (3 and thence to thespindle 7 by means of the belt 38. Itis also apparent that the speed orrevolution of the shaft 6 may be varied by simply moving thefriction-wheel 43 into engagement with one or the other of thecone-sections of the pulley 1, and in order to permit this adjustment ofthe friction-wheel 43 I provide a universal joint or connection 55between the opposite sections of the shaft G, this universal connectionalso serving to permit the opposite ends of the flexible shaft to beadjusted vertically in different planes when desired.

In the operation of my invention when it is desired to grind taperingsurfaces the device seen in Figs. 1 to 5, inclusive, is employed, thearm 17 of the bracket 5 being inserted in the slot in the tool-post andclamped in position by the screw 13. The standard is res'ted upon theioor or other support, and the operator then moves the friction-wheelinto engagement with one of the surfaces of the cone-pulley 1 by meansof the handpiece 44 and then moves the grinding-wheel 8 along thetapering surface to the grinder by means of the handpiece or sleeve 34.Should the axis of the spindle 7 not be in proper position relative tothe tapering surface to be ground, it is evident that the section 16 maybe loosened and adjusted either by moving the same vertically or rockingit upon the clampingscrew 23, or the clamping-nut 26 may be loosened andthe tool-post and section 14 moved toward or away from the axis of thecentering-pin of the shaft 11, or, on the other hand, if it becomesnecessary to change the position of the shaft 6 relatively to thetool-post itis simply necessary to loosen the clamping-nut 26, whereuponthe section 15 may be moved along the section 14 until the shaft 6 is inthe desired position.

The operation of my invention will now be readily understood uponreference to the foregoing description and the accompanying drawings,and it will be noted that the essential features of my invention-viz.,the flexible shaft 6, the spindle 7, actuated thereby, the sectionalbracket 5 for permitting the adjustment of the shaft or spindlerelatively to each other, and the manually-operated means forcontrolling the movement of the frictionwheel 43 into and out ofengagement with the peripheral surfaces of the cone-pulley 1 and alsothe longitudinal adjustment of the spindle 7 and the means fordetachably securing the bracket 5 to the tool-post of a lathe-may all bevaried in construction and arrangement without departing from the spiritof this invention. Therefore I do not limit myself to the preciseconstruction and arrangement shown and described.

Having described my invention, what I claim, and desire to secure byLetters Patent, is-

1. An attachment for lathes comprising a support adjustably secured tothe tool-post of the lathe, an4 arm adjustable vertically on thesupport, a revoluble grinding member journaled on the arm and means torotate said member.

2. In combination with a revolving lathe member, a bracket adjustablysecured to the tool-post and provided with a vertically-adjustable arm,a revoluble grinding member adjusted on the arm and means actuated bythe former member and connected to rotate the grinding member.

3. In a grinding attachment for lathes, bracket-sections carried by thetool-post, one being adjustable lengthwise of the other, a revolublegrinding member carried byA one section and a driving member for thegrinding member carried by the other section and receivingits power fromone of the revolving parts of the lathe, said driving member beingadjustable vertically forthe purpose set forth.

4. In a grinding attachment for lathes a vertically-adjustable armcarried by the toolpost, a revoluble grinding member journaled on thearm and having an independent endwise movement, and a driving member infric- IOO Ito

tional engagement with one of the revoluble parts of the lathe, saiddriving member being adjustable lengthwise of and at an angle with itsaxis for the purpose specified.

5. The combination with a revolving part of alathe, of agrindingattachment comprisin ga support and a vertically-adj ustablearm, a revoluble grinding member journaled on the arm and afriction-disk adapted to enlgage the revolving part of the lathe, meansfor transmitting power from the disk to the grinding member, andmanually-operated means for controlling the position of the diskrelative to the revolving member.

6. An attachment for lathes comprising a frame adapted to be secured tothe tool-post of a lathe, a vertically-adjustable arm on the frame, aspindle journaled in the frame and provided with a grinding member, ashaft journaled on the arm and connected to drive said spindle and afriction-disk connected to the shaft and adapted to engage one of therevoluble members of the lathe for the purpose set forth.

7. An attachment for lathes comprising a frame adapted to be secured tothe tool-post of a lathe, and provided with vertical andhorizontally-adj ustable arms, a spindle journaled in the vertical armand provided with a grinding member, a shaft journaled on thehorizontally-adjustable arm and connected to drive said spindle, and anoscillatory standard supporting a revoluble friction-disk, said diskbeing fiexibly connected to the shaft and adapted to be moved into andout of engagement with one of the revoluble parts of the lathe by thestandard for the purpose set forth.

S. An attachment for lathes comprising a frame adapted to be secured tothe tool-post ofa lathe, a sliding spindle journaled in the frame andprovided with a grinding member, a shaft journaled on the frame andconnected to drive said spindle, a sleeve loose on the spindle to slideit endwise, an oscillating Hoorstandard, a yoke adjustably mounted onthe standard and a revoluble disk carried by the yoke and arranged tocontact with one of the revolving parts of the lathe for the purpose setforth.

9. In a grinding attachment for lathes the combination with a revolublegrinding member carried by the tool-post of the lathe, a revoluble shaftconnected to rotate the grinding member, a spindle connected to theshaft by a universal joint, a friction-disk secured to the spindle andadapted to engage one of the revolving members of the lathe and ahandpiece loose on the spindle for controlling the position of thespindle.

l0. An attachment for lathes comprisinga frame adjustably mounted on thetool-post of the lathe, a revoluble spindle on the frame and providedwith a grinding member, a handpiece loose on the spindle, a revolubleshaft mounted on the frame and connected to rotate the spindle, a secondspindle connected to the shaft by a universal joint, said shaft andspindle being movable endwise and a friction-disk feathered on thesecond spindle to engage one of the revolving parts of the lathe.

ll. An attachment for lathes comprising a frame adjustably mounted onthe tool-post of the lathe, a revoluble spindle on the frame andprovided with a grinding member, and adjustable vertically independentlyof the frame,a revoluble shaft mounted on the frame and connected torotate the spindle, a second spindle connected to the shaft by auniversal joint, said. shaft and spindle being movable endwise and afriction-disk feathered on the second spindle to engage one of therevolving parts of the lathe, and means for movingthe spindle toward andaway from the revoluble part of the lathe and for holding the same fromendwise movement with its spindle.

l2. In a grinding attachment for lathes the combination with a frameadjustably mounted on the tool-post, a shaft and spindle journaled onthe frame at an angle with each other and adjustable toward and awayfrom each other without varying said angle, the spindle being actuatedby the shaft and provided With a grinding member, a second spindlehaving a sleeve feathered thereon, either being movable lengthwise ofthe other, a universal joint connecting the shaft and second spindle,and a friction-disk adapted to contact with one of the revoluble partsof the lathe for the purpose pecified 13. In a grinding at achment forlathes the` ICOA IOS

IIO

sectional frame mounted on the tool-post of the lathe, the sectionsbeing adjustable one upon the other, one of the sections bearing aspindle movable endWise in its bearing and provided with a revolublegrinding-wheel and the other a driving-shaft connected thereto, saidspindle having a hand-sleeve loose thereon, and means for rotating theshaft.

15. In a grinding attachment for lathes, a sectional frame mounted onthe tool-post of the lathe, the sections being adjustable one u pon theother, one of the sections bearing a revoluble spindle having an endwisemovement in its bearing and provided with a grinding-Wheel and the othera driving-shaft connected thereto, said grinding-wheel having its axisarranged at an angle with the shaft, and means for rotating the shaft.

16. In a grinding attachment for lathes, a sectional frame mounted onthe tool-post of the lathe, the sections being adjustable one upon theother, one of the sections bearing a revoluble grinding-Wheel and theother a driving-shaft connected thereto, said grinding- Wheel beingmovable lengthwise of its axis, and having its axis arranged at an anglewith the shaft and means for rotating the shaft.

17. In a grinding attachment for lathes, a sectional frame mounted onthe tool-post of the lathe, the sections being adjustable one upon theother, one of the sections bearing a revoluble grinding-Wheel and theotheradriving-shaft connected thereto, said grinding- Wheel beingmovable lengthwise of its axis, and having its axis arranged atan anglewith the shaft, a yoke having a sleeve journaled thereon, said sleevehaving an annular friction-face, a spindle feathered in the sleeve and,flexibly connected to the shaft, and a floor-standard adjustable on theyoke and having a handpiece for forcing the frictionsurface into ContactWith a revolving member of the lathe, for the purpose described.

In Witness whereof l have hereunto set my hand on this 21st day ofSeptember, 1901.

ROSS M. RUSSELL. Witnesses:

Jnssn M. HAMMEKEN, HOWARD P. DENIsoN.

